I guess the life expectancy of guys in Singapore is lower than that of their female counterparts for a very simple reason (not the only one, of course) - NS.
How NS makes you die faster:
- All NS guys smoke, passive or otherwise. There is no escape, man.
- Physical exertion and injuries, self-inflicted (so as to downgrade) or otherwise.
- Extensive exposure to radio waves (radiation), esp. signallers.
- Cookhouse food - need I say more?
- S^3: Stress. Saigang. Sergeant majors.
- Seeing and sleeping with more guys than you ever will for the rest of your life. (equally disastrous for both heterosexual and homosexual males, I gather) =P